compile with backtrace support

[gregwebs]

Also improve an error message.
It was easy to do this from the backtrace.

✓ Checklist:

• This PR has been added to CHANGELOG.md (at the top of the list);
• Tests for the changes have been added (for bug fixes / features);
• Docs have been added / updated (for bug fixes / features).

[gregwebs]

@evgeniy-r please review

[codecov-commenter]

Codecov Report

Attention: 16 lines in your changes are missing coverage. Please review.

Comparison is base (6f35ccb) 87.10% compared to head (f63062c) 87.00%.
Report is 1 commits behind head on main.

Files	Patch %	Lines
datanymizer_dumper/src/postgres/dumper.rs	0.00%	16 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #208      +/-   ##
==========================================
- Coverage   87.10%   87.00%   -0.11%     
==========================================
  Files          60       60              
  Lines        4173     4178       +5     
==========================================
  Hits         3635     3635              
- Misses        538      543       +5     

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